Geojson Testing

Setup

Packages

# Packages
require(ggplot2)
require(plotly)
require(geojsonio)
require(sp)
require(sf)
require(rvest)
require(RSelenium)
require(htmltools)
require(ggmap)
require(lubridate)
require(stringr)

Data

# Download file for state info

url = "https://opendata.arcgis.com/datasets/5f45e1ece6e14ef5866974a7b57d3b95_1.geojson"

file = "NJ_counties.geojson"

download.file(url,file)

trying URL 'https://opendata.arcgis.com/datasets/5f45e1ece6e14ef5866974a7b57d3b95_1.geojson'
Content type 'application/json' length unknown
downloaded 8.4 MB

rm(url)

# Convert file to sf object 

file = "NJ_counties.geojson"

NJ_Counties <-
  geojson_sf(file)
rm(file)

# Clean Data 

NJ_Counties_Cleaned <- 
  NJ_Counties %>%
  transmute(
    county = COUNTY,
    CO = CO,
    pop = POP2010,
    popdensity = POPDEN2010,
    Shape_Length = Shape_Length,
    Shape_Area = Shape_Area,
    GNIS = GNIS
  )

#get page source from website

gc()

           used  (Mb) gc trigger  (Mb) max used  (Mb)
Ncells  4676000 249.8    7330683 391.6  7330683 391.6
Vcells 16384116 125.1   34559173 263.7 34559173 263.7

driver <- rsDriver(browser = c("firefox"), port = 44454L)

checking Selenium Server versions:
BEGIN: PREDOWNLOAD
BEGIN: DOWNLOAD
BEGIN: POSTDOWNLOAD
checking chromedriver versions:
BEGIN: PREDOWNLOAD
BEGIN: DOWNLOAD
BEGIN: POSTDOWNLOAD
checking geckodriver versions:
BEGIN: PREDOWNLOAD
BEGIN: DOWNLOAD
BEGIN: POSTDOWNLOAD
checking phantomjs versions:
BEGIN: PREDOWNLOAD
BEGIN: DOWNLOAD
BEGIN: POSTDOWNLOAD

[1] "Connecting to remote server"
$acceptInsecureCerts
[1] FALSE

$browserName
[1] "firefox"

$browserVersion
[1] "84.0"

$`moz:accessibilityChecks`
[1] FALSE

$`moz:buildID`
[1] "20201211215739"

$`moz:geckodriverVersion`
[1] "0.28.0"

$`moz:headless`
[1] FALSE

$`moz:processID`
[1] 2128

$`moz:profile`
[1] "C:\\Users\\Devansh\\AppData\\Local\\Temp\\rust_mozprofilex2sKxq"

$`moz:shutdownTimeout`
[1] 60000

$`moz:useNonSpecCompliantPointerOrigin`
[1] FALSE

$`moz:webdriverClick`
[1] TRUE

$pageLoadStrategy
[1] "normal"

$platformName
[1] "windows"

$platformVersion
[1] "10.0"

$rotatable
[1] FALSE

$setWindowRect
[1] TRUE

$strictFileInteractability
[1] FALSE

$timeouts
$timeouts$implicit
[1] 0

$timeouts$pageLoad
[1] 300000

$timeouts$script
[1] 30000


$unhandledPromptBehavior
[1] "dismiss and notify"

$webdriver.remote.sessionid
[1] "79262589-c403-4b36-b334-63af6392461e"

$id
[1] "79262589-c403-4b36-b334-63af6392461e"

remote_driver <- driver[["client"]] 
remote_driver$navigate("https://www.childrens-specialized.org/locations-directory/?")

page <- remote_driver$getPageSource()

# Retrieve information from directory

Xpathgen1 = "/html/body/div[1]/div/div/div[2]/div/div[2]/div["

Xpathgen2 = "]/div/div[2]/article"

Hosinfo <- data.frame()

for (i in 1:15){
  XPath <- paste(Xpathgen1,i,Xpathgen2,sep = "")
  Node <- page[[1]] %>% 
    read_html() %>%
    html_nodes(xpath = XPath)
  name <-
    Node[[1]] %>%
    html_node("h2") %>%
    html_text()
  address <-
    Node[[1]] %>%
    html_node("h3") %>%
    html_text() %>%
    gsub(pattern = "\n *",replacement = " ", x = .)
  for (i in 1:7){
  XPathday <- paste(XPath,"/div[",i,"]",sep = "")
  day <- page[[1]] %>% 
    read_html() %>%
    html_nodes(xpath = XPathday) %>%
    html_attr("class") %>%
    grep("-Hours",x = .,value = TRUE) %>%
    gsub("-Hours","",x = .)
  times <-
    page[[1]] %>% 
    read_html() %>%
    html_nodes(xpath = XPathday) %>%
    html_node("h3") %>%
    html_text()
  assign(day,times)
  }
  row = data.frame(name,address,Monday,Tuesday,Wednesday,Thursday,Friday,Saturday,Sunday)
  Hosinfo <-  rbind(Hosinfo,row)
}

# Write csv file 

write.csv(Hosinfo, "Hospitals.csv")

# Data Wrangling

Hosinfo <- read.csv("Hospitals.csv")

pattern <- "([0-1]*[0-9]:[0-5][0-9] *[AaPp][Mm][-to ]+[0-1]*[0-9]:[0-5][0-9] *[AaPp][Mm])"

Hosloc <- 
  Hosinfo %>%
  select(name,address) %>%
  mutate_geocode(address) # Requires google API key

rm(pattern)

write.csv(Hosloc,"Hospitalsloc.csv")

Graphs

# Map of NJ 

NJ <-
  NJ_Counties_Cleaned %>%
  ggplot() +
  geom_sf() +
  theme(legend.position = "None") +
  theme(axis.ticks = element_blank(),
        axis.text = element_blank(),
        title = element_text(size = 9)) +
  labs(y = "",
       x = "",
       title = "Map of NJ divided by county")

ggplotly(NJ)

NJ

plot(NJ_Counties_Cleaned)

# Population heat maps of NJ using 2010 population data

NJ <-
  NJ_Counties_Cleaned %>%
  ggplot() +
  scale_fill_gradientn(colours=c("white", "blue")) +
  geom_sf(aes(fill = pop)) +
  theme(legend.position = "None") +
  theme(axis.ticks = element_blank(),
        axis.text = element_blank(),
        title = element_text(size = 9)) +
  labs(y = "",
       x = "",
       title = "2010 Population Heatmap")


ggplotly(NJ)

NJ

plot(NJ_Counties_Cleaned["pop"])

# Location of Hospitals in NJ on heatmap

Hosloc <- read.csv("Hospitalsloc.csv")

# Only need out patient centers 

Hosloc <-
  Hosloc %>%
  filter(grepl("Outpatient", name))


NJ <-
  NJ_Counties_Cleaned %>%
  ggplot() +
  scale_fill_gradientn(colours=c("white", "blue")) +
  geom_sf(aes(fill = pop)) +
  geom_point(data = Hosloc,aes(x = lon,y = lat,shape = "square", label = name,color = "orange")) +
  theme(legend.position = "None") +
  theme(axis.ticks = element_blank(),
        axis.text = element_blank(),
        title = element_text(size = 9)) +
  labs(y = "",
       x = "",
       title = "2010 Population Heatmap\nwith CSH Outpatient Center")

Ignoring unknown aesthetics: label

NJ

ggplotly(NJ,tooltip = "name")

NA